---
id: CVE-2026-85682
title: >-
  The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in
  all versions up to, and including, 7.0.10
summary: >-
  The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in
  all versions up to, and including, 7.0.10. This is due to the plugin
  transmitting a wp_rest nonce to window.opener via postMessage() with a
  wildcard targetOrig…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-346
vendor: yourownprogrammer
product: YOP Poll
affected:
  - yop_poll <= 7.0.10
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T15:17:46.703'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-85682'
references:
  - url: 'https://plugins.trac.wordpress.org/changeset/3690945/'
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/b3574182-1bda-49b2-aac7-60f862891b46?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-24T14:34:56.198122Z'
ingestedAt: '2026-09-24T09:40:50.746Z'
---

## Overview

The YOP Poll plugin for WordPress is vulnerable to Origin Validation Error in all versions up to, and including, 7.0.10. This is due to the plugin transmitting a wp_rest nonce to window.opener via postMessage() with a wildcard targetOrigin. This makes it possible for unauthenticated attackers to steal a REST nonce scoped to a logged-in Administrator and use it to change the Administrator's email address and password, resulting in full account takeover. The Administrator must open an attacker-controlled page in order to exploit this vulnerability.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.